68182-81-0

Basic information

• Product Name: 5,6-dichlorohexahydro-4,7-epoxy-2-benzofuran-1,3-dione
• Synonyms: 4,7-Epoxyisobenzofuran-1,3-dione, 5,6-dichlorohexahydro-
• CAS NO: 68182-81-0
• Molecular Formula: C₈H₆Cl₂O₄
• Molecular Weight: 237.0368
• Mol File: 68182-81-0.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 474°C at 760 mmHg
• Flash Point: 226.9°C
• Density: 1.71g/cm³
• Vapor Pressure: 3.75E-09mmHg at 25°C
• Refractive Index: 1.582
• CAS DataBase Reference: 5,6-dichlorohexahydro-4,7-epoxy-2-benzofuran-1,3-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 5,6-dichlorohexahydro-4,7-epoxy-2-benzofuran-1,3-dione(68182-81-0)
• EPA Substance Registry System: 5,6-dichlorohexahydro-4,7-epoxy-2-benzofuran-1,3-dione(68182-81-0)

Safety Data

• Hazardous Substances Data: 68182-81-0(Hazardous Substances Data)

Upstream product

• 6118-51-0 exo-3,6-epoxy-1,2,3,6-tetrahydrophthalic anhydride 
• 75-21-8 oxirane 

Relevant articles and documents

SIMULTANEOUS CHLORINATION OF TETRAHYDROPHTHALIC ANHYDRIDES WITH OXIRANES

The simultaneous chlorination of cis-1,2,3,6-tetrahydrophthalic and exo-3,6-epoxy-1,2,3,6-tetrahydrophthalic anhydrides with oxirane and epichlorohydrin was investigated.Electrophilic attack by the halogen in three-component addition at the double bond of cis-1,2,3,6-tetrahydrophthalic anhydride takes place on the side of the anhydride ring.The Wagner-Meerwein rearrangement is not observed during the simultaneous addition of chlorine and oxirane at the double bond of exo-3,6-epoxy-1,2,3,6-tetrahydrophthalic anhydride.